The Drakkengard Dynasty
Suffer not the xenos, heretics, or mutants to live. Also called "Suff" for short.
It's so deadly I could fluff.
Marru – Discovered by the Brygun Dynasty of Rogue Traders on a world deep within the Koronus Expanse, the majestic winged feline creatures known as Marru were brought to the Calixis Sector where they became an instant marvel within many noble circles. Their pelts and exquisite wings sat within grand banquet halls, and living specimens were paraded to entertain and fascinate the aristocrats. Marru breed at a tremendous and almost uncontrollable rate, and what had once been a rare beauty was fast becoming an innumerable pest. It was Krynus Brygun, one scion of that Rogue Trader dynasty, who first determined that the creatures could be used as passable if capricious mounts and began selling the creatures to certain elements of Imperial Guard regiments in the Spinward Front.